Skip to content
View in the app

A better way to browse. Learn more.
Ford Owners Club - Ford Forums

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.



Join the Independent Ford Owners' Club

Our community has been built by enthusiasts, for enthusiasts, and proudly run by Ford owners' for over 18 years. As an independent, non-official club, everything you’ll find here, advice, support, and opinions, comes directly from members with genuine Ford ownership experience.

Join our friendly community... it's Free!

 

Putting a petrol ST back-box on a diesel Car

James Hawes
James Hawes
in Ford Fiesta Club

Featured Replies

Hi!,

I have recently added an ST diffuser/apron to my 2016 TDCI Fiesta.

I am now trying to address the exhaust end. The standard exhaust back box has to outlet bent over to point down and to the side. I cant fit a decorative end to this!

I want to change the backbox only (not the Cat) could I use a standard petrol backbox on a diesel engine? If I can there are loads of types I could fit, may or may not require an adapter/taper coupling, but that's ok. 

I'm struggling to find a backbox only that has a straight outlet for the exhaust tip. 

Maybe if a petrol backbox is fine- I could just use a standard petrol ST one??

If anyone can advise me to the the likely affect of putting a petrol ST back box on a diesel car- please help!!

  • Quote


    Hello James, I've noticed that you asked the same in another post IIRC.

    You can place the muffler from the ST fiesta if it matches your existing pipework on your fiesta. There shouldn't be any diesel vs petrol difference for an exhaust muffler.

    What others suggested in the other thread, you can just cut the bent tail and add a decorative tip to fit the hole.

    Either way, just go to an exhaust shop and get it done there. I'm sure that it will be a 15 minute job.

    Greetings

  • Quote
    • Author

    Thanks mate, do appreciate your help. 

  • Quote

    • Latest Deals

    Ford UK Shop for genuine Ford parts & accessories

    Disclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase via the club

    Join the conversation

    You can post now and register later. If you have an account, sign in now to post with your account.

    Guest
    Reply to this topic...
    Go to topic listing

    The "Digestive"

    • The Digestive Forum Roundup (24th May - 31st May 2026)

      Steve ·
      The Digestive Forum Roundup (24th May - 31st May 2026) We hope this email finds you well and enjoying your week. As always, our forum has been buzzing with activity, so we’ve compiled the highlights for you. Plenty of interesting discussions are taking place, especially around the Ford Focus and Fiesta models. Starting off with the Focus, many members have been discussing issues with the Emergency Call System, particularly in the Mk4 model. PLB raised concerns about persistent malfunctions, a se
      Steve
      Steve
      • 251 views





    Background Picker
    Customize Layout

    Account

    Navigation

    Search

    Search

    Configure browser push notifications
    Chrome (Android)
    1. Tap the lock icon next to the address bar.
    2. Tap Permissions → Notifications.
    3. Adjust your preference.
    Chrome (Desktop)
    1. Click the padlock icon in the address bar.
    2. Select Site settings.
    3. Find Notifications and adjust your preference.